Hello I spent a fewdays tracking a bug with glusterfs on NetBSD. I use a full NetBSD build within glusterfs as a stress test. The bug occurs within a configure script, where sed is invoked to turn a configure into configure.lineno. The sed process hang, and traceing system calls, I can see a read() system call that never returns from then kernel. Tracing glusterfsd (on the client) shows this: 501 3 glusterfsd RET readv 80/0x50 (this is the FUSE frame) 501 3 glusterfsd CALL writev(7,0xb8a644c0,2) 501 3 glusterfsd RET writev -1 errno 55 No buffer space available The deep cause of the problem is kernel buffer memory running low. I suspect this condition never arise with factory settings on Linux, therefore the poor error handling. it would be nice if glusterfsd could return a EIO (or ENOBUFS if it makes sense) to FUSE, so that the kernel can detect the failure, instead of remaining hung on the read() system call. Thoughts? -- Emmanuel Dreyfus http://hcpnet.free.fr/pubz manu@xxxxxxxxxx
